This is unresolved.
Images like “387a9c2b-407c-3074-af48-956d1e6a9557.jpg” in uploads are corrupt. Irfanview says “can’t read file header” and “unknown file format or file not found.” I published 16 posts (with default settings) which produced 11 broken image attachments in media.
The plugin also choked a bit on post creation. It took three tries to create 16 posts. This may be unrelated.
Latest WP, latest plugin, local server (AMPPS, latest). Other plugins were installed but none activated at the time of post creation.
Thank you.